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Musv 360 70 290 - PowerPoint PPT Presentation

Areas of Circles and Sectors

Areas of Circles and Sectors

Areas of Circles and Sectors. Thursday, September 11, 2014. How do we find the areas of circles and sectors?. Lesson 6.8. M2 Unit 3: Day 10. 2. Radius. 1. Circumference. C = 48 ft. about 7.64 ft. ANSWER. ANSWER. about 81.68 in. Daily Homework Quiz. Warm-Up.

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516 views • 26 slides
Warm Up

Warm Up

Areas of Circles and Sectors. Warm Up. Lesson Presentation. Lesson Quiz. about 201.06 cm 2. ANSWER. 1. 2. Radius:. mi. 1. 3. about 5.59 mi 2. ANSWER. Warm-Up. Find the area of a circle with the given measure. 1. Radius: 8 cm. 4 ? ft 2. ANSWER. 100. 4. Solve x 2 =. ?. _.

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263 views • 17 slides
EXAMPLE 1

EXAMPLE 1

a. Area. = ? (2.5) 2. r = 2.5 cm. ANSWER. The area about 19.63 square centimeters. Use the formula for area of a circle. EXAMPLE 1. Find the indicated measure. SOLUTION. A = ? r 2. Write formula for the area of a circle. Substitute 2.5 for r. = 6.25?. Simplify. ? 19.63.

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184 views • 10 slides
EXAMPLE 1

EXAMPLE 1

a. Area. = ? (2.5) 2. r = 2.5 cm. ANSWER. The area about 19.63 square centimeters. Use the formula for area of a circle. EXAMPLE 1. Find the indicated measure. SOLUTION. A = ? r 2. Write formula for the area of a circle. Substitute 2.5 for r. = 6.25?. Simplify. ? 19.63.

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179 views • 10 slides
EXAMPLE 1

EXAMPLE 1

a. Area. = ? (2.5) 2. r = 2.5 cm. ANSWER. The area of A is about 19.63 square centimeters. Use the formula for area of a circle. EXAMPLE 1. Find the indicated measure. SOLUTION. A = ? r 2. Write formula for the area of a circle. Substitute 2.5 for r. = 6.25?.

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185 views • 8 slides
EXAMPLE 1

EXAMPLE 1

a. Area. = ? (2.5) 2. r = 2.5 cm. ANSWER. The area of A is about 19.63 square centimeters. Use the formula for area of a circle. EXAMPLE 1. Find the indicated measure. SOLUTION. A = ? r 2. Write formula for the area of a circle. Substitute 2.5 for r. = 6.25?.

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222 views • 8 slides

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